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System for controlling starting of air conditioner and control method thereof

An air conditioner and control pair technology, which is applied in heating and ventilation control systems, machines/engines, heating and ventilation safety systems, etc., can solve the problem of not giving the control system and method for starting the air conditioner, unsuitable compressor, and unsuitable Problems such as pulse width modulation compressor control system and method are given

Inactive Publication Date: 2002-11-20
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology

Therefore, these compressors are not suitable for air conditioning systems in buildings where long lines must be used, and they need to be given a control environment different from that of these refrigeration systems
In addition, in the prior art, a control system and method for using a pulse width modulation compressor in a multi-air conditioner, specifically, a control system for quickly and safely performing Control system and method for starting an air conditioner

Method used

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  • System for controlling starting of air conditioner and control method thereof
  • System for controlling starting of air conditioner and control method thereof
  • System for controlling starting of air conditioner and control method thereof

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Embodiment Construction

[0020] Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 schematically depicts an embodiment of a cycle of a system for controlling the start-up of an air conditioner according to the principles of the present invention; the air conditioner 1 of the present invention comprises a compressor 2, a condenser 3, a A series of electronic expansion valves 4 and a series of evaporators 5 are connected to each other by refrigerant conduits to form a closed circuit. Among these refrigerant conduits, a refrigerant conduit connecting the outflow side of the compressor 2 to the inflow side of the electronic expansion valve 4 is a refrigerant conduit for guiding the high-pressure refrigerant flow discharged from the compressor 2. Conduit 6, and a refrigerant conduit connecting the outflow side of electronic expansion valve 4 to the inflow side of compressor 2 is a low-pressure conduit 7 for guiding the f...

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Abstract

A system for controlling the activation of an air conditioner includes a compressor controlled in a pulse width modulated manner based on an operating control signal; an electronic expansion valve for expanding refrigerant compressed in the compressor ; a high pressure conduit connecting the outlet side of the compressor and the inlet side of the electronic expansion valve; a low pressure conduit connecting the outlet side of the electronic expansion valve and the inlet side of the compressor; a bypass conduit, the first end of which is connected to the high pressure conduit, the second end of which is connected to the low-pressure conduit; a flow rate regulating valve, mounted on the bypass conduit, for regulating the flow rate of the liquid flowing through the bypass conduit; Control the compressor during startup: open the electronic expansion valve, open the flow rate regulating valve, and generate an operating control signal that is shorter than an operating control signal during normal operation.

Description

technical background [0001] The present invention relates to air conditioners. More particularly, the present invention relates to a system and method for controlling the start-up of an air conditioner using a pulse width modulated compressor. Background technique [0002] As the size of buildings continues to increase, people's consumer demand for multi-air conditioners is increasing day by day, that is, people want to connect multiple indoor units to a single outdoor unit. In such a multi-air conditioner, since the outdoor unit is relatively far from the indoor unit, the length of the refrigerant pipe connecting each indoor unit to the outdoor unit is too long, so that the amount of refrigerant filled is too large, and liquid refrigerant may enter the compressor during start-up of the air conditioner. [0003] Specifically, if the power supply to any indoor unit is suddenly cut off during operation of a multi-air conditioner, the possibility of liquid refrigerant enterin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02F04C18/02F04C23/00F04C27/00F04C28/06F04C28/26F24F11/00F25B1/00F25B1/04F25B5/02F25B41/04F25B41/06F25B49/02
CPCF04C18/0215F04C23/008F04C27/005F04C28/06F04C28/26F25B1/04F25B5/02F25B49/022F25B2500/26F25B2600/0261F25B2600/2513F25B2600/2521F24F11/83Y02B30/70F25B41/35F25B41/20F25B41/34F25B41/24F24F11/84
Inventor 文重基金荣晚文济明李庭泯金钟烨赵日镛
Owner SAMSUNG ELECTRONICS CO LTD
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